Events Mini Calendar

Go to previous month Go to next month
  S M T W R F S
W40 27 28 29 30 1 2 3
W41 4 5 6 7 8 9 10
W42 11 12 13 14 15 16 17
W43 18 19 20 21 22 23 24
W44 25 26 27 28 29 30 31

Today is:
Thu, May 23, 2024

MSU Events Calendar

 Choose Calendar view:   Day   Week   Month     Search   Filter

Math Seminar Series  (Conferences / Seminars / Lectures)

Geometry and Topology

Josh Wang from Harvard will be speaking.

The title is "Floer and Khovanov homologies of band sums."

This is a virtual meeting that takes place over Zoom.

Contact Honghao Gao ( for more information.

Given a nontrivial band sum of two knots, we may add full twists to the band to obtain a family of knots indexed by the integers. In this talk, I'll show that the knots in this family have the same Heegaard and instanton knot Floer homology but distinct Khovanov homology, generalizing a result of M. Hedden and L. Watson. A key component of the argument is a proof that each of the three knot homologies detects the trivial band. The main application is a verification of the generalized cosmetic crossing conjecture for split links.

more information...

Location: Zoom link provided on Math Seminars page [map]
Price: free
Sponsor: Department of Mathematics
Contact: Department of Mathematics
phone pic (517) 353-0844